This figure shows a dynamic discovery cluster with four 10.1.3.2.0 middle tiers. The first middle tier contains Oracle HTTP Server. The second middle tier contains the following OC4J instances:
home
This OC4J instance contains Application Server Control.
OC4J_Apps
This is a custom OC4J instance for running WebCenter applications. It connects to a shared Oracle Metadata Services directory and a shared LDAP server.
The third middle tier contains the following OC4J instance:
OC4J_Apps
This is a custom OC4J instance for running WebCenter applications. It connects to a shared Oracle Metadata Services directory and a shared LDAP server.
The fourth middle tier contains the following OC4J instance:
OC4J_WebCenter
This OC4J instance contains the portlet container and portlet producers.
Oracle HTTP Server communicates with the OC4J instances using AJP.